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3 years ago

Perpendicular slope to 3x-y=4

Physics

1 answer:

Mashcka [7]3 years ago

4 0

Perpendicular slope would be 1/3. so the equation will be Y=1/3x -4

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What do you notice about the angle of earth?

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3 years ago

un bus sale de florencia hacia el municipio de san vicente del caguan con una velocidad de 30km/h. 2 horas mas tarde sale otro b

goldenfox [79]

Recuerda que distancia=velocidad x tiempo ( $d=vt$ ). vamos a llamar $d _{1}$ a la distancia que reccore el primer bus, y $d _{2}$ la distancia que recoore el segundo. Los se econtraran cuando la ditancia recorrida por cada bus sea la misma, es decir $d _{1} =d _{2}$ .
Ahora sabemos que la velocidad del primer bus es 30 km/h y su tiempo es $t$ ; en cuanto al segundo bus, su velocidad es 45 km/h y como sale 2 horas mas tarde su tiempo será $t-2$ . Ahora podemos reemplazar los valores en nuestra ecuación de de distanica para hallar el tiempo:
$30t=45(t-2)$
$30t=45t-90$
$30t-45t=-90$
$-15t=-90$
$t= \frac{-90}{-15}$
$t=6$
Los buses se encontraran en 6 horas, 4 horas después de haber salido el segundo bus.

Ahora para hallar la distancia a la que los buses estaran de san vicente del caguan solo necesitaremos reemplazar la el tiempo en nuestra equación de distancia para el primer bus:
 $d _{1} =(30)(6)$
$d _{1} =180$
En el punto de encuentro los buses estarán a 180 km de San Vicente del Caguan.

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3 years ago

Will students do better in school if teachers are

marissa [1.9K]

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3 years ago

A fuel oil tank is an upright cylinder, buried so that its circular top is 14 feet beneath ground level. the tank has a radius o

Ierofanga [76]

Say we have a cylinder that has a height of dx, we see that the cylinder has a volume of: 

Vcylinder = πr^2*h = π(5)^2(dx) = 25π dx

Then, the weight of oil in this cylinder is:

Fcylinder = 50 * Vcylinder = (50)(25π dx) = 1250π dx.

Then, since the oil x feet from the top of the tank needs to travel x feet to get the top, we have:

Wcylinder = Force x Distance = (1250π dx)(x) = 1250π x dx.

Integrating from x1 to x2 ft gives the total work to be: (x1 = distance from top liquid level to ground level; x2 = distance from bottom liquid level to ground level)

W = ∫ 1250π x dx
W = 1250π ∫ x dx
W = 625π * (x2 – x1)

x2 = 14 ft + 15 ft = 29 ft

x1 = 14 ft + 1 ft = 15 ft

W = 625π * (29^2 - 15^2)
W = 385,000π ft-lbs = 1,209,513.17 ft-lbs

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3 years ago